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Volume data pending.
Hafnium is a by-product of zirconium purification for nuclear-grade zircaloy cladding (they must be separated to <1% Hf for reactor use).
Source: USGS Mineral Commodity Summaries 2026 (public domain). Production and reserves are world shares of the USGS-published world total. Stocks, price and net import reliance are United States salient series — never world figures. Reserves are a single-year snapshot; USGS does not restate history, so a reserves trend needs each year’s file archived separately.
Economy at stake: a cut-off by CN would take $480M off US GDP (USGS puts that scenario at 38% probability; weighted, $206M). Hafnium, USGS Open-File Report 2025-1047 input-output model over 402 US industries, 2023 dollars. US economy only and a model estimate, not an observation. Source.
Policy pressure on Hafnium (unwrought) is cooling — 1 restrictive action on record, peak severity 4, 0 in the last 12 months (vs 1 the year before). Most-active issuer: 🇮🇳 IN (1).
Signals are read directly from the policy register's recorded cadence, pending effective dates, and responds_to cycles for Hafnium (unwrought). They describe the trajectory already on the record — not a forecast.
Tickers and corporate names parsed from the company_refs field of every action whose target_materials includes hafnium — the specific operators a policymaker identified by name. Click a company to see the filings.